Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / include / linux / platform_data / serial-sccnxp.h
1 /*
2  *  NXP (Philips) SCC+++(SCN+++) serial driver
3  *
4  *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
5  *
6  *  Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de)
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License as published by
10  *  the Free Software Foundation; either version 2 of the License, or
11  *  (at your option) any later version.
12  */
13
14 #ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_
15 #define _PLATFORM_DATA_SERIAL_SCCNXP_H_
16
17 #define SCCNXP_MAX_UARTS        2
18
19 /* Output lines */
20 #define LINE_OP0                1
21 #define LINE_OP1                2
22 #define LINE_OP2                3
23 #define LINE_OP3                4
24 #define LINE_OP4                5
25 #define LINE_OP5                6
26 #define LINE_OP6                7
27 #define LINE_OP7                8
28
29 /* Input lines */
30 #define LINE_IP0                9
31 #define LINE_IP1                10
32 #define LINE_IP2                11
33 #define LINE_IP3                12
34 #define LINE_IP4                13
35 #define LINE_IP5                14
36 #define LINE_IP6                15
37
38 /* Signals */
39 #define DTR_OP                  0       /* DTR */
40 #define RTS_OP                  4       /* RTS */
41 #define DSR_IP                  8       /* DSR */
42 #define CTS_IP                  12      /* CTS */
43 #define DCD_IP                  16      /* DCD */
44 #define RNG_IP                  20      /* RNG */
45
46 #define DIR_OP                  24      /* Special signal for control RS-485.
47                                          * Goes high when transmit,
48                                          * then goes low.
49                                          */
50
51 /* Routing control signal 'sig' to line 'line' */
52 #define MCTRL_SIG(sig, line)    ((line) << (sig))
53
54 /*
55  * Example board initialization data:
56  *
57  * static struct resource sc2892_resources[] = {
58  *      DEFINE_RES_MEM(UART_PHYS_START, 0x10),
59  *      DEFINE_RES_IRQ(IRQ_EXT2),
60  * };
61  *
62  * static struct sccnxp_pdata sc2892_info = {
63  *      .mctrl_cfg[0]   = MCTRL_SIG(DIR_OP, LINE_OP0),
64  *      .mctrl_cfg[1]   = MCTRL_SIG(DIR_OP, LINE_OP1),
65  * };
66  *
67  * static struct platform_device sc2892 = {
68  *      .name           = "sc2892",
69  *      .id             = -1,
70  *      .resource       = sc2892_resources,
71  *      .num_resources  = ARRAY_SIZE(sc2892_resources),
72  *      .dev = {
73  *              .platform_data  = &sc2892_info,
74  *      },
75  * };
76  */
77
78 /* SCCNXP platform data structure */
79 struct sccnxp_pdata {
80         /* Shift for A0 line */
81         const u8                reg_shift;
82         /* Modem control lines configuration */
83         const u32               mctrl_cfg[SCCNXP_MAX_UARTS];
84         /* Timer value for polling mode (usecs) */
85         const unsigned int      poll_time_us;
86 };
87
88 #endif